view mercurial/mpatch.h @ 47211:159d2de3286c

pyoxidizer: use Python 3.9 (BC)

Newer versions of PyOxidizer use Python 3.9 by default. We
previously pinned the version to 3.8 to facilitate porting to
a new PyOxidizer version and diffing results.

Now that the porting work is complete, let's bump Python
to Python 3.9.

This will effectively change our Windows Inno and WiX Python 3
installers from Python 3.8 to 3.9.

.. bc::

   Windows .msi and .exe installers now use Python 3.9 instead of
   Python 3.8.

Differential Revision: https://phab.mercurial-scm.org/D10689

#ifndef _HG_MPATCH_H_
#define _HG_MPATCH_H_

#define MPATCH_ERR_NO_MEM -3
#define MPATCH_ERR_CANNOT_BE_DECODED -2
#define MPATCH_ERR_INVALID_PATCH -1

struct mpatch_frag {
	int start, end, len;
	const char *data;
};

struct mpatch_flist {
	struct mpatch_frag *base, *head, *tail;
};

int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist **res);
ssize_t mpatch_calcsize(ssize_t len, struct mpatch_flist *l);
void mpatch_lfree(struct mpatch_flist *a);
int mpatch_apply(char *buf, const char *orig, ssize_t len,
                 struct mpatch_flist *l);
struct mpatch_flist *
mpatch_fold(void *bins, struct mpatch_flist *(*get_next_item)(void *, ssize_t),
            ssize_t start, ssize_t end);

#endif